/*
 CCCC - C and C++ Code Counter
 Copyright (C) 1994-2005 Tim Littlefair (tim_littlefair@hotmail.com)

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */
// cccc_opt.h
#ifndef _CCCC_OPT_H
#define _CCCC_OPT_H

// This file defines the object which holds the major configuration
// options for the CCCC program including:
//  - the default language associated with each file name extension; 
//  - the treatment of specific values of each metric; and
//  - the application of dialect specific parsing rule (e.g. rule to 
//    ignore MSVC++-specific pseudo-keywords when parsing the 
//    MS C++ dialect.

// This is a natural singleton class, hence all member functions are static
// and all data will be declared with static file scope in the implementation
// file.

#include "cccc.h"
#include "cccc_itm.h"

class Metric_Treatment;

class CCCC_Options {
public:
	// initialise using a file
	static void Load_Options(const string& filename);

	// initialise using hard-coded defaults
	static void Load_Options();

	// save the current set of options to a file
	static void Save_Options(const string& filename);

	// add a new option into the current option set
	static void Add_Option(CCCC_Item& option_line);

	// map a filename to a language
	static string getFileLanguage(const string& filename);

	// map a metric name to a Metric_Treatment object
	static Metric_Treatment *getMetricTreatment(const string& metric_tag);

	// the following function allows the parser to use special 
	// handling rules for identifiers in particular situations
	// (especially pseudo-keywords like BEGIN_MESSAGE_MAP)
	static string dialectKeywordPolicy(const string& lang, const string& kw);
};

#endif

